Review on 👕 White Brite WB30N: Powerful 28 oz. Laundry Whitener for Brilliantly White Clothes! by Isaac Maze

I just received this product and have used it on three pure white cotton t-shirts. I followed the directions on the bottle very closely. However, once you take the t-shirts with the "white writing" inside them out of the water and try to wash them under water, the t-shirts will turn LIGHT BLUE. This possibility is not listed anywhere on the bottle and I have verified that no part of the t-shirt (including labels) is damaged. I am currently using the product again and the shirts are "white" again (although the stains remain). However, I don't understand how to wash them in the end. The highlight: This is a product for professionals on "laundry" level who can spend a lot of time doing their laundry very "professionally". If you're a regular person trying to whiten your whites, it's better to buy plain old bleach. On the one hand, it's incredibly expensive considering its actual utility.